The stability and instability phenomenon coupled with the rotation effect and the thermal convection between two concentric cylinders was studied. By means of t
In this article, our research aims to set up a geo-decisional system, more precisely we are particularly interested in the spatial analysis system of agricultur
In this work we try to give a new contraction type in multi-valued mapping on complete metric spaces. We prove the existence of fixed point for (<i>r</i>,<i>φ<